Available on the old Digital PDP-11.
+------------//--------+ +------------//--------+ |AA1 AB1 AC1 // AU1 AV1| |BA1 BB1 BC1 // BU1 BV1| |AA2 AB2 AC2 // AU2 AV2| |BA2 BB2 BC2 // BU2 BV2| +------------//--------+ +------------//--------+
 (at the computer)
 (at the computer)
2 x 36 EDGE FEMALE at the backplane.
2 x 36 EDGE MALE at the cards/modules.
| Pin | Name | 
|---|---|
| AA1 | /INIT | 
| AA2 | POWER(+5v) | 
| AB1 | /INTR | 
| AB2 | GROUND | 
| AC1 | /D00 | 
| AC2 | GROUND | 
| AD1 | /D02 | 
| AD2 | /D01 | 
| AE1 | /D04 | 
| AE2 | /D03 | 
| AF1 | /D06 | 
| AF2 | /D05 | 
| AH1 | /D08 | 
| AH2 | /D07 | 
| AJ1 | /D10 | 
| AJ2 | /D09 | 
| AK1 | /D12 | 
| AK2 | /D11 | 
| AL1 | /D14 | 
| AL2 | /D13 | 
| AM1 | /PA | 
| AM2 | /D15 | 
| AN1 | GROUND | 
| AN2 | /PB | 
| AP1 | GROUND | 
| AP2 | /BBSY | 
| AR1 | GROUND | 
| AR2 | /SACK | 
| AS1 | GROUND | 
| AS2 | /NPR | 
| AT1 | GROUND | 
| AT2 | /BR7 | 
| AU1 | NPG | 
| AU2 | /BR6 | 
| AV1 | BG7 | 
| AV2 | GROUND | 
| BA1 | BG6 | 
| BA2 | POWER(+5v) | 
| BB1 | BG5 | 
| BB2 | GROUND | 
| BC1 | /BR5 | 
| BC2 | GROUND | 
| BD1 | GROUND | 
| BD2 | /BR4 | 
| BE1 | GROUND | 
| BE2 | BG4 | 
| BF1 | /ACLO | 
| BF2 | /DCLO | 
| BH1 | /A01 | 
| BH2 | /A00 | 
| BJ1 | /A03 | 
| BJ2 | /A02 | 
| BK1 | /A05 | 
| BK2 | /A04 | 
| BL1 | /A07 | 
| BL2 | /A06 | 
| BM1 | /A09 | 
| BM2 | /A08 | 
| BN1 | /A11 | 
| BN2 | /A10 | 
| BP1 | /A13 | 
| BP2 | /A12 | 
| BR1 | /A15 | 
| BR2 | /A14 | 
| BS1 | /A17 | 
| BS2 | /A16 | 
| BT1 | GROUND | 
| BT2 | /C1 | 
| BU1 | /SSYN | 
| BU2 | /CO | 
| BV1 | /MSYN | 
| BV2 | GROUND | 
| Contributor: | Rob Gill | 
| Source: | Digital PDP-11 peripherals handbook | 
  Copyright © The Hardware Book Team 1996-2004.
  May be copied and redistributed, partially or in whole, as appropriate.
  Document last modified: 2002-01-10